Abortion bans with no exceptions may be politically risky

Anti-abortion activists protest outside the U.S. Supreme Court on Monday, May 23. (Bill Clark/CQ-Roll Call, Inc via Getty Images)

If it seems as though the anti-abortion movement has gotten more extreme in recent months, that's because it has.

But it's not the first time — positions taken by both sides of the abortion debate have ebbed and flowed repeatedly in the 49 years since the Supreme Court declared abortion a constitutional right.